Ed Seykota, one of the first systematic futures traders, has a whole web page up dedicated to "stopping Bernoulli abuse" and instead proposing the "Theory of Radial Momentum" as a way to explain lift:
The material isn't explained all that well (at least, for a non-physicist like myself) but it would appear that an object or structure which forces a fluid to expand in multiple directions, will reduce pressure and induce lift.
The example is a playing card adhering to a thimble with air going through a spool. Also works with water from a hose.
Interested to see what someone who understands this stuff well thinks...
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Ed Seykota, one of the first systematic futures traders, has a whole web page up dedicated to "stopping Bernoulli abuse" and instead proposing the "Theory of Radial Momentum" as a way to explain lift:
http://www.seykota.com/rm/
The material isn't explained all that well (at least, for a non-physicist like myself) but it would appear that an object or structure which forces a fluid to expand in multiple directions, will reduce pressure and induce lift.
The example is a playing card adhering to a thimble with air going through a spool. Also works with water from a hose.
Interested to see what someone who understands this stuff well thinks...